Doffing-machine for spinning-frames.



A. G. BOOZER, IR. & G. HILL.

DoFFING MACHINE FOR SPINNING FRAMES.

APPLICATION FILED APR. I5, I9II. 1,142,013. Patented June 8,1915.

I2 SHEETS-SHEET I.

A. G. B '0OZER, Jn. & G. HILL.Y

DOFFING MACHINE FOR SPINNING FRAMES.

APPLICATION FILED APR. I5. IsII.

l ,142,013. Patented June 8, 1915.

I2 SHEETS-SHEET 2.

A. G. oozER, JR. at G. HILL.

DOFFING MACHINE FOR SPINNING FRAMES.

APPLICATION FILED APR. I5, 19H. 1,142,913.. Patented June 8,1915.

I2 SHEETS-SHEE] 3.

A. G. BOOZER, In. & G. HILL.

DOFFING MACHINE FUR SPINNING FRAMES.

APPLICATION FILED APR. I5, 1911.

A. G. B00ZER,1R. 6I G. HILL.

DOI-'FING MACHINE FOR SPINNING FRAMES.

APPLICATION FILI-:o APR. I5, I9II.

, l s l @2,0 1 3 a v Patented June 8, 1915.

l2 SHEETS-SHEET 5.

A. G. BOZER, JR. & G. HILL.

DOFFING MACHINE FOR SPINNING FRAMES. l

APPLICATION FILED APR. I5. 1'911.

1,142,013. l Patented June 8, 1915.

I2 SHEETS-SHEE' 6.

figa@ la; 1&9

' A. G. BOOZER, IR.& G. HILL.

DOFFING MACHINE FOR SPINNINGFRAMES.

4 APPLICATION FILED APR. I5. 19H. 1,142,013, Patented June 8,1915.

12 SHEETS-SHED witnesses I O QB ngty l iw mowu- A. G. BoozEn, JR'. @L G. HILL.

DOFFING MACHINE FOR SPINNING FRAMES.

Patented June 8, 1915.

12 SHEETS-sum s.

APPLICATION FILED APR.15, 19H

NNN

W13/ananas Y A. G. B00ZER,.II. a. G. HILL. DOFFING MACHINE FOR SPINNING FRAMES.

APPLICATION FILED APR- l5, 191|- 1,142,013. Patented June 8, 1915.

l2 SHEETS-SHEET 9.

A. G. BoozEn, 1R. & G. HILL. DOFHNG MACHINE FOR 'SPNNING FRAMES.

APPLICATIONI FILED APR. l5 191|. Patented June 8, 1915.

12 SHEETS-SHEET l0.

A. G. BOOZER, In. & G. HILL.

DoFFING MACHINE Foa SPINNING FRAMES.

APPLICATION FILED APR15,19I1 v v Patented June 8, 1915.

A. G. BOOZER, JR. &G. HILL.

DOEFING MACHINE FOR SPINNING FRAMES. APPLICATION FILED APR. I5, 1911.

12 SHEETS-SHEET l2.

spindles of spinning machines, severing the sTATEsr f FFIC' i ARTHUR GEO. Dooznn, Jn., AND ernennen:y HILL, or' Tucarilm, SOUTH CAROLINA, .ASsIGNOBs To HOWARD D. OOLMAN, LUTHER L. MILLER, AND nimmt A. snvnnvSON, cOPAnTNnnS DOING BUSINESS AT nocxronn, ILLINOIS, AS Bemann- COLNAN COMPANY.

i DGFFINMACHINE lFOR SPINNING-FWS.

Booznn, Jr., Aand GEORGE Hum, citizens of the United States, residing at Tueapau, in

the county of Spartanburg and State `of South Carolina, have invented certain new and useful Improvements in DoIing-Machines for Spinning-Frames, of which the following is a specification.

The invention set forth in this application appertains to improvements in dofling machines for spinning frames, the object being to provide an automatic or power driven mechanism for rapidly, accuratelyand suscessively removing filled lbobbins from the thread or yarn between the raised bobbin and the spindle, and then placing upon the empty spindle an emptylbobbin, the full bobbins that` have been doed being deposited v'into a receptacle carried by the A doliiiig machine made to accord with our invention is designed to be maintained in movableengagement with the spinning frame and to travel Afrom one vend of the frame to the other end, without the intervention of manual assistance and during its travel which is intermittent to raise the filled or partially illed, or even empty bobbins from the spindles of thepspinning frame, sever the thread when the `bobbin has been raised above the spindle and then place an empty bobbin properly upon the spindle,

these operations being effected while the dofer is at rest, 'and isA held in xedor nonmovable engagement with the spinning frame. The empty bobbins are supplied to `the ydoiier from a magazine mounted upon the spinning frame, which magazine is adapted to carry'a suicient number of empty bobbins to"supply one side of the frame. y

A machine of the character shown wherein the movements are rapid and where'there automatic means should be provided, where- 1 by in the event of any of the parts failing Y to properlyperform their function or func- Specication of Letters Patent.

tions there will be an immediate stoppage of the doling' machine and its parts, in order to prevent injury either to the doiiing machine, the bobbins or the spindles, such means also 'being effectively actuated by y manual operation and by engagement with a fixed part on the spinning frame for autoe matie actuation whendthe 'doin'g machine reaches the end of a frame.

To meet the commercial requirements of' Patented June 8, 1915.

Application filed April 15, 1911. Serial No. 62 1,317.

an automatic or power driven dolfer the essential characteristics are accuracy in operation,l freedom from liability of `injuring the bob-- bins or the spindles, speed in operation,

portability and lightness in structure the least possible encroachment upon the aisle space, a' non-interference with the operative parts of the spinning frame,A and` ease of attachment to the spinning frame and removal therefrom for use upon another frame. i

These requirements we have accomplished Aby a lconstruction wherein the bobbin-removing and the bobbin-placing means operate in vertical alinement with the spindles, and

duringl a period when the carriage is held in non-movable or locked engagement with the spinning frame, and should there be a failure, as the non-removal of a filled bobbin from a spindle or an improper placing of an empty vbobbin on the spindle, the drive will be at once disassociated from the doifer and an immediate stoppage of the doier mechanism or travel of the carriage will be effected. 4 A

The doling mechanismY illustrated by the accompanying drawings is'designed as'an.

improvement upon the machines shown in our prior and copending applications filed November 8, 1907, March 16, 1909 and March 22, 1909, and the drawings in the present application show the dilferent parts in the position that they will occupy when the bobbin has been removed from the spindle andthe thread ory yarn has been cut and at a position where the upward movement of the dofr'er-head is retarded at which posi'- l' tion the travel of the doier along the spinning frame commences.

In the accompanying drawings Figures l and 11 constitute a front elevation of our improved doifer for spinning frames, a portion of the spinning frame being shown in dotted lines. Figs. 2 and 21 constitute an end elevation, the bolster rail and the ringfrom Fig. 2. Fig. 2 is-a fragmental detail view of parts shown in Fig. 2. Figs. 3 and 3*? constitute a rear elevation of the doiling rail ofthe spinning frame and the magazine for'the empty bobbins being shown in section. Fig.` 2b 1s a detail view projected machine, showing the same detached from the spinning-frame. Fi 4 is a horizontal section taken immediate y below the platform or table'of the doifer, on the line 4 4,

Fig. la. Fig. 5 is a horizontal section taken.

'in thefplane of line 5 5 of Fig. 2, above the table and the doifer-head and looking downward. g Fig. 6 (Sheet 5) is a plan view of those"'parts which are located above the plane of the doffer head. Fig. 7 is a plan view of the doffer h ea'd,-a portion thereof being'removed.` Fig. 8 is a vertical longitudinal' section through' the doier head'.

Fig. 9 is a plan view of the base plate of the doffer head. Fig. 10 is a sideelevation Iof the base plate of the doifer head. Figs. 11, 12, 13 and 14 are detail views of parts of the doffer head. Fig. 15 (Sheet 5) shows plan views of several brackets or supports which are attached to an upright or standf ard of the doling machine. Figs. 16 arid 17 are detail views of a supportv attached to 3o brackets maintained by said upright or standard. Fig. 18 is a sectional view of' bobbin-inverting means. Fig. 19 is a sid/eJ elevation of themain actuating shaft and parts associated therewith. Fig. 20 is ade-fl) tail View of a gear" crank and cam that ist/4, 'attached to the'front end of said main shaft. I"

Fig. 21 is a sectional view of the gear shown "by Fig; 20. 722 is a front elevation of' a part' on the f' in actuating shaft. Fig. 23

. 40 is a rear eleva,l ion of the part shown by Fig.

22.v Fi 24 is a vertical section of the part shown y Figs. 22 and 23. -Fig. 25 is a detail view showing parts of the bobbin placing mechanism. Figs. 26, 27 and 28 are detail views of parts shown by Fig.. 25.

tangnlar framework consisting of sides 190,

a.,table 191 carried bythe upper ends of said sides, .a base 192 connecting'the lower Aends d/fsaid sides and cross-bars 111 and 112' exfitending between the sides; This framew/rk isarranged to be mounted upon the spinning frame for traveling movement longitudinally thereof by .meansvof upper rollers 98 andlower rollers 97 attached to the rear side of the framework, said upper rollers being groovedl to engage and rest upona bar 2 suitably secured to the upper flange of the bolster lrail 1 of the spinning frame. Spacing. sleeves 1a may be used to space the guide rail 2 the proper distance v from `said bolster rail. The lower pair Vof :rollers 97 are grooved to engage the lower edge of a guide bar 3 which is carried by 4an angular flange 4a upon each one of a series of brackets 4, said brackets'being attached at their upper ends to the lower flange of the bolster raill', and having theirv lowerendsbearing upon the Hoon Preferably the lbrackets comprise overlapping sections, and' the length 'o ed to unevenness in the floorby means of a bolt extending through an opening in.

one of the bracket sections and throu h a slot. in the other section. When the ro ers 97V and 98 are in engagement 'with their guide rails the supporting rollers 193 which ziov each bracket may'jbe adjustare carried by the lower end of the framework are clear of the floor.

The upper supportingrollers l98 are fixed upon shafts 99 whiclnare rotatably mounted in eccentric supports r1100. (See Figs.v 1, 3a

and 4.) These eccentric supports are rotatably mounted in suitable bearings on the framework and each has .a projection 101 thereon, which projections are connected together for simultaneous' movement by means of a link 102. A handle 103'ixed with\re' lation to one of the supports' is arranged to rotate both of the supportsto raise and lower the framework ofi'. the floor when the upper rollers have been associated with the upper guide rail 2. A hand lever 104 'ens gages a spring-actuated locking pin 105 which is arranged to enter suitable locking recesses to hold the eccentric supports in their adjusted position. )Whenl the doifer/is being removed from the spinning frame,

projections107 (Fi s. 3 al and C4) come intov engagement with t e guide rail 2l as `the frameworkis lowered, vsaid projections supporting the machine so that the rollers 97 and 98 may be freed from their guide rails and the dotfer may be lifted ofi'.

The spinning frame is of the usual construction comprising the spindles a monnt' ed in thebolster rail 1 and having Whirls b 3(see Fig. 2a) fixed thereon for rotating them.

c indicates the ring-rail of the spinning frame.

The means for feeding the doifer-step by step along the spinning.V frame comprises a toothed wheel 73, the .teeth of whichare arranged to engage notches 2 in the lower edge of the guide bar 2 lwhen the dofl'eris associated with the supporting frame. The

wheel 73 is fixed on the rear end upon a horizontal shaft 194 rotatably mounted in the cross-bar 112, said 'wheel having fixed in a suitable bearing in the framework and has fixed to'one end thereof a cam member or disk 75 (illustrated lin Figs. 19, 22 and 23), said member carrying a roller stud 74 arranged to enter the' successive notches 196- in the star wheel 195 to intermittently rotate the toothed wheel 73. A segmental boss 72 on the cam member 75 is arranged to fit and turn in the arcuate recesses k197 in the star wheel during the periods when the roller stud 74'is not in engagement with one of the notches 196, (see Fig. 3a) so that the star wheel 195 and the. toothed wheel 73 will vbe locked against movement between the periods of their actuation.

' The main drive shaft 3 4 is arranged to be driven in the present instance by means of an electric motor 31 mounted on the base 192 of the supporting frame. The shaft of the motor preferably has a fly wheel 31%* fixed thereon and said shaft also carries a bevelpinion 31b`which meshes with a bevel gear wheel 31e rotatably mounted upon the' lower end of a vertical shaft 35 whichis 1 30 'sides of the framework. The upper end of 173 mounted in'the base` plate 164 and the mounted in suitable bearings on one of the the shaft 35 carries a bevel pinion 35a which .mesheswitha similar kpinion 35h carried by a horizontal stub Ishaft 35", as best. shown in Fig. 2n. Upon this stub shaft is fixed a pinion 44 which meshes with a gear wheel 45 fixed upon the main actuating shaft 34.`

(See Fig. 19.). The'endof the stub'shaft 35 is arranged to receive a crank 33 forrotating the shaft 34 by hand.

Clutch means is provided for connecting the motor to 'the shaft 35, the4 means for this purpose which is herein shown comprising a clutch hub 31d upon' the bevelgear wheel 31, said lhub being arranged to beenga ged by a clutch collar 32 slidably but nonrotatably mounted upon the shaft 35. ik.. horizontal rock shaft 37 (Figs. l, 2a and` 3u) is mounted in one of the 'sides 190 of the. framework, said shaft having an arm thereon which is connected through a link 38 with pivoted jaws39 engaging the clutch cllar 32. YThe shaft 37 may be manually rocked Oto' engage and .disengage' said clutch shaft 37 is fixed an arm 41 to which is at! 65 tached the lower end of a link 42, the upper Fig. 8*,comprises a horizontal base plate 164,

collar by means of a'frictionally held handA en d of said link being connected with mechanism arranged to'be actuated in case the doffer fails to perform one of its functions, as, for example, fails to remove a bobbin from a spindle. This latter mechanism will be later described.`

The bobbins are'doff'ed by a doifing head best shown in Figs. 5 and 7 to 12, said doiiiug head comprising two oppositely extending bobbin-engaging devices. The dofiing head is arranged to have a vertical reciprocating `movement to pass downwardly over a filled bobbin and raise it from its spindle, and said head also 4has arotary movement to carry the filled bobbin in one of the gripping devices above a discharge chute 'and at the same time carry the other gripping device of the head above thesucceedingbobbin to be doffed. This dofling head, as shown in sides '167 and a cross-plate 169' connecting the upper edges of said sides. The base plate '164. has annular portions 164a vat opposite ends thereof which are arranged to encircle a lled bobbin when ithe head descends. The lower edges of these annular portions are preferably rounded sothat saidportions `will engage the thread running to the bobbin and move it to one side so that it will not be engaged by the gripping devices. Pivoted upon a pair of vertical pins top plate 169 are two pairs of gripping jaws 172. These pairs of jaws\ extend in opposite direction fro-m'their pivts, and each com- 100 vprises a plurality of superimposed and indeof jaws at lefposite 'sides of said pivot'pins 10AA will intermesh, as clearly shown in Fig. 7. The jaws carry antifriction rollers 174 at.

' their inner sides and these'rollers are arranged to beengaged by a horizontally reciprocable member 175 (Fig. 11) 4positioned 110 between the jaws yand having wedge-shape ends. As' this member is reciprocated, one. en d thereof will be moved between the rollers of one pair'of jaws to spread 'said jaws apart,

the opposite end of said reciprocable member being withdrawn vfrom between the'rollers on the jaws to permit said jaws to be closed,

by means to be resently described. The wedge member 1 5 is guided between the base 164 and top 169. When the member 17 5 120 is moved into full position between the antifriction rollers, said rollers lie in recesses 176 in said member. An elongated opening 'extends vertically through the member and runs substantially from end to end thereof. 125

Pivoted on a pair of ears upon the top plate 169 is a three-arm lever 171, the middle depending arm of said lever passing through a slot in said top plateand into the elongated opening in the wedge member, said 130.

arm having a notch in its lower end to embrace a pin 177 mounted-,in the wedge member crosswise of saidopening, so that when the lever 171 is rocked, said member 175 will be reciprocated. The ends of the horizontal arm of the lever'171 have attached thereto links 166 which extend downwardly through openings 165 in theA base plate. Thel lower ends of said' links are alternately engaged by meansto be later described to raise the links and rock the lever 171. A series of bolts 168 have their heads engaging in open- I ings in the side walls 167 of the doi'er head,

and upon each of these bolts is mounted for free sliding and rocking movement aspan- Y ner bar 179, the opposite ends of each 'of said lbars being arranged to engage in recesses 178 in two adjacent oppositely extending ingers of. the jaws 172 at one side of theI doffer head. (See Figs. 3 and 7).

These Spanner bars are pressed inwardly by vcoiled springs 180 lsurrounding the bolts 168 vand bearing at their inner ends against coli lars 180a which engage the mid-portions of said Spanner bars. Preferably the springs 180 and -collars 1801 are inclosed by housings 181. As indicated in Fig. J7, the spanner bars having knife-blade edges or pivots against i which the collars 180 bear, so that said spanner bars will be free to rock. As will be seen when-the reciprocable member 175 is l moved to withdraw its end' from between one pair of the jaws, the springs 180 'will force the adjacent ends of the spa-nner bars 179 inwardly to-close -this pair of. jaws, 'the opposite pair of jaws being heldopen'by by the dofiing head are released'by saidV said reciprocable member. Since the fingers of the gripping jaws are independently.pivV oted and independently pressed, by the spanner vbars. 179, the ngers are free to adjust themselves to the surface ofthe obbinS,

-whether the bobbins be full, or only par-4 tially or unevelywound', or empty, so that the jaws will obtain the most eiiicient-grip upon the bobbins. I

'1`hebobbins removed. fro their spindles d'oiiing head above an opening 121..through the table 191, said opening being surrounded by a Haring guide 122. Beneath the opening 121 is a guide ohute'123 arranged to direct the falling bobbins yinto asu-itable receptacle provided for that purpose. In the present instance, we have shown a .bag-carried upon a pair of arms 119 which are pivoted to the j framework adjacent to the lower end of the chute 123. If it is desired to move these arms' out of operative position, they may be raised upon their pivots to disengage projections carried thereby from their coperating recesses, and the arms may then be given a slight twist and dropped down to hang along one of the sides ofthe'. framework, .asindi'cated in dotted lines in Fig. 1a.

The arms.119 extend 'longitudinally of the frame-sofasnot toencroach upon the aisle space. s y j Y 'Thedoifer head is mountedupon the upper end of -a doi'er bar 116 whichjis ver-.- lcally slidable through the table'..19l, the lower end of said bar being slidablym'omlt-V edia a bracket 117 carri-ed by the framef work. The means for vertically reciprocat-YV ingthis doffer -bar 116 comprises a two-arm lever 47 48 which is'pivoted at 47a in the framework. .The long arm 48.0f the lever 47 is connected by. means of'a link 50 to a sleeve 48L mounted upon the dofer bar 116 between two fixed collars thereon, said sleeve permitting rotation of the dofer bar. The

shorter'arm 47 of this lever has a `slet therein in which travels a pin carried by oneend of a link 46, the opposite end of said link being pivoted upon a wrist pin 198 fixed in the forward face of the gear wheel 45 upon the main ,actuating shaft 34. As will be seen, when the gear wheel 45 rotates, the doifing head will 'be moved up and down.

In order to counterbalance the lever 48 there is provided a coiled spring within aA housing 113 attached to the framework, said spring being arranged'tobe compressed by a pin 113n attached to the lever 48. When' a bobbin from a spindle. In order that the dotl'er bar 116 shall be stationary for a suitable length of time when in its upper and lower positions there isprovided a member 49 fixed in the `frame-work and having a cam slot therein into which slot' the pinon the l link 46 extends. Said slot has an inclined -middleportion and end' portionsshaped to*A allow said, pin to move in the slot iii the arm 47 when vthe rod 116 is at or near its upper and lower positions.

Rotary movement is imparted to the doffing headpby the following. means: A vertical shaft 88 has its ends mounted in bearings in the table- 191 and the cross-bar 112,' and upon `the lower end of said shaft is a bevel gear 87 which ,meshes'with a similar gearV 199 upon the shaft 194 which carriesY the toothed driving wheel 73. The upper portion of thev shaft 88 lfas mounted thereon a bevel pinion 87 which meshes with a'pinion 93 fixed upon one end of` ashort horizontal shaft 94. This shaft94 is mounted in a depending' bearing bracket 200 Vfixed to the under side of the table 191. The other end of the shaft 94 carries a bevel gear 95 which meshes with a bevel gear 96 rotatably silpported at the under' side of the table and hav-v ing a non-circular opening therein through which the rectangular portion of the doiiing bar 116 slides, as shown in Fig. 4. Intermittent rotary movement is imparted to the shaft 194 from the mainI shaft 84 through the cam sector 72 andstar Wheel 195 and from the:

shaft 194 this intermittent rotation is transinitted to the doiier bar y116 through the means above described. f

The upper portion of the mechanism of the machine is supported by an upright tubular standard 67 risin fromythe table 191, the lower end of sald standard being seated in a base 66 lixed to the table. vertical rock shaft 65 has its lower end mounted in a bearing lug 201 (Fig. la) upon the base member 66, and upon said rock shaft is fixed an arm 64 having attached thereto one end of a horizontal link 202. The other end of said link is attached 'to the upright arm oit' a bell-crank lever 71 (Figs. 1a and 5) pivoted in a bea-ring upon the upper face ofthe table 191. The horizontal arm of said bell-crank lever extends into position to underlie the depending links 166v of thedol'er headl as said links are moved alternately into position. The arm 64y is arranged to be swung to actuate the.

links 166 or' the dol'er head by. means of an upright lever 61 pivoted in the supporting framework and having its upper arm extending through an opening in the table 191 and inter-engaging with the end of tne arm 64. The lower end of the lever 61 carries a roller stud 62 arranged to run -in a cam groove 63 (Fig. 20) upon the inner or rear face ot' the gear wheel 45 upon the main actuating shaft. The parts associated with the main shaft' 34 are shown inFig. 19. yThe contour of the cam groove 63 is such that the bell-crank 71 'will be rocked-mt the proper time to actuate the gripping means. ofthe doi'er head.

After a bobbin has been raised 0E its spindle, the thread running from the bob bin to the spindle is severed. AvThe means for cutting this thread comprises anl upright.

horizontal plane such that they will freelyl clear the .upperl ends of the spindles and bobbins thereon, but will be engaged by a bobbin unless it is fully seated upon its' spindle.

Suitable means for sliding the movable shear blade may be provided, that 'herein shown comprising a vertical rock shaft 203 (Fig. 2) carried by the support 80, the upper end of said shaft having' a crank arm 204 engaging the slidable shear blade 81a and the lower end of- .said shaft having. a. crank armv 205 arranged to be moved into. engagement with an upright lprojection or pin 206 fixed in the'guideway for the support 80. Thus when the support has been slid to a position slightly beyond the spindle from which a bobbin has just been doifed, the pin 206 'will actuate the shear to sever the thread running from the bobbin to the spindle. The support is arranged to .be slid by means of a lever 77 pivoted intermediate its ends inthe framework, the upper end of said lever extending through a slot 78 in thetable 191 and being connected by a link 79 with said support 80.

.The lower end of the lever 77 carries a roller ing through a lug on the cross-bar 112, the

lower end of said rod having a nut threaded thereon beneath said lug for adjusting the 'tension of the spring 83. This spring tends to swing the lever 77 to place the threadshearing device inits operative or projected position, but the segmental {iange upon the cam member 75 engages the roller stud upon the lever 77 and holds said lever with l the thread-shearing device out of its opera.

tive position. When the roller stud 77 rides ofi' said segmental ange, which occurs just after a bobbin is` doii'ed, the lever 77 will` be quickly swung by the spring 8 3 to project the shearingdevice between the lower end of the doifed bobbin and the upper end of its spindle, and the rock shaft 80a will `be actuated by the pin 206 to operate the shear and sever the running thread.` As the ca'm member 75 continuesto rotate, the lever 77 will be engaged by an antifriction roller on said cam member at one end of the segmental flange 85, and said lever will be swung until its roller finally/rides up on the flange 85.

.In case the remove a filled bobbin, or an empty .bobbin has not been properly seated upon-the spindle, it is desirable to automatically stop the doii'er. The mechanism for accomplishing this result comprises a horizontal bar .8 4 (see Figs. 2 and 3a) carried by thevlever 77 and extending slidably through an opening Vin one of the sides of the framework. An

arm 208 (pivoted upon the framework has its outer `en connected bymeans of the link 42 to the clutch-operating mechanism prevlously described. Preferably saidarm. is i' liprovided with a lug 209 in which is mounted an adjustingscrew which bears against the framework. A dog 43 is pivoted at its upper end to the mid-,portion of the arm 208,`the Ynose of said dog being arranged to engage-a projection 76 upon the periphery ofy the cam member 75. v Said dog is normally' held in its engaging,V position by means of'a coiled spring 210. The outer end of the bar 84 carriedby the lever 77 is arranged to engage the dog 43 and move it out of operative position. Then the dofer is operating properly said dog will be moved out of operative position at' each swinging movement of the lever 77 so that the dog will not` engage the .lug 76 on the cam member 75. However, incase of failure of proper actuation, as above mentioned, lo the thread-shearing'device will come into engagement with the improperly positioned bobbin and consequently the lever 77 will be held against swinging movement to project'A the bar 84 and move the dog out of operative position. Therefore when the lug 76 again comes into relation with the dog, said dog will be engaged and moved upwardly to raise the link and thus disengage the clutch collar 32 and' stop the machine.

' An arm 54 is pivoted in the :lower portion of the framework, said arm being connected with the doifer-head-raising lever 48 by means: of a link 51, the lower end of said link having a roller stud 52 which runs in a slot in the arm 54 and in a slot in a'stationof a rod 58 is attached to the slidehead 56, the upper end of said rod being arranged to operate means for controlling the feeding of empty bobbins to beplaced uponthe spindles. This means will be later described.

. To prevent the withdrawal of a spindle from the spindle-bolster, the doft'er frame is provided With a projection 114 (Figs. 3a and 4) that may also serve as a support for the upper end of'a guide rod 115 along which the sleeve 48u upon the doiier rod 116 slides, the lower end of the rod 115 being seated in the bracket 117. A whirl-engaging member 118 (Fig.- 4) embraces the projection 114 and is pivoted upon the bar 115. Movement in' one direction ofthe whirl-engaging member is limited by a stop portion 118a that Gover-lies the projection 114. A spring 211 attached tothe projection and to the part 118 permits such vpart vto swing andpass the spindles as the dofl'er is moved along the spinning frame. The part 118 is of such ,f a length as to. overlie the whirl offthe spindle from' which a bobbin is ,being doifed,

and will effectively prevent the withdrawal of the spindlefrom the bolster should the usual :catch be moperative; f

The v tubular standard 67 v has vmounted thereon aplurahty of brackets 124125 126 6 5 127 128, these brackets being shown in deary cam 53 mounted in the framework. The

cross-bar 112 respectively. The lower endV tail plan view in Fig. 15. The vertical guide I adaptedto receive bobbins in an inverted position from the empty bobbin magazine and turn the bobbins-right side up for transmission to the guide tube 130. This inverting device is best shown in Fig. 18 and com prises a shaft A129 rotatably mounted in the bracket 126 and carrying a sleeve 131 which is open atl both ends to receive a bobbin. A

' semi-circular guide plate 138 is arranged to prevent the bobbins -from falling out of the inverter While in motion. The inverter is intermittentlyrotated by a vertical drive shaft 92 (see Fig. 2), having a miter gear at its upper end which meshes with a similar gear upon the inverter shaft, the drive shaft 92having a pinion 91 at its lower end whichmeshes with a pinion 90 (Fig. 1a) upon the upper end of the vertical shaft 88 above the table 191. An upright 132 is carried by the brackets 126 and 128, said upright having secured thereto a guide 133 having a funnel portion ,134 at its 'lower end and above the inverter tube 131. The guide 133 extends in position directly beneath the'bobbin magazine to be presently described.

A vertical guide bar 60 (Figs. 2, 3, 5 and 25) has its lower end secured to the table 191 and its upper .end secured in the bracket 125. Upon this guide bar is slidably mounted a crosshead 59 which is attached to the upper having at-its forward end a roller stud 145 and a slotted extension 146 (Fig. 28), the rear end eff said slide having a bearing 147 thereon. In this bearing is mounted a vervticalpin 148 having at its upper end a bobend of the rod 58. In ahorizontal guideway l. 143 in this crossheadis mounted a slide 144 pin 148. A vertical rod 70 carried by arms 68 and 69 upon the vertical rock shaft 65 extends through theslot inthe extension 146 on the lslide 144 so that when the rock shaft means of arms 154. The roller 145 travels between the vertical portion of this guide v65 is rocked by the lever 61 and arm 64 as and the arm 152 in its downward movement.

YP'ivotally attached to the upper end'of the arm 152 isa rod 156 which is slidably mounted in a bearing 212 in the bracket 125. Upon this rod is a collar 213l having a pin arranged to be embraced by the notched arm. 157l of a bell-crank 157, which is pivoted on the bracket 125 and is connected by means of A -a link 158 with means to be presently deside the guide tube 130 and has its ends" mounted in bearings in the brackets 124 Aand 125. (See Fig. 3). The free. end of the arm 160 has a projection or stop 161 which extends through -the wall of the tube 130 and normally supports a bobbin in the inverter tube 131. Upon the lower end of said rock shaft is an angular stop 162 arranged to project through a horizontal slot in the guide tube and support another bobbin therein. When the rod 156 is slid rearwardly the projections or stops 161 and 162 are withdrawn from the guide tube to permit the lowermost bobbin thereinto drop onto the empty spindle and to allow the bobbin in the inverter to .descend in the guide tube.

The operation'of this portion of the mechanism is as follows-W hen the' crosshead 59 is in its upper position, 'the rod 70 will be swung by the rock shaft 65 topush the slide jnected by a cross-brace 9 (Fig. 2b). Upon the shaft 10 is fixed a sprocket wheel 11 and 144 rearwardly and project the head of the,

a plurality of sheaves 12. Abearing bracket bobbin seater 149 into the guide tube 1393" through a horizontal slot 130a therein (Fig.

2). The neck portion of the bobbin seater will then be in alinement with'the upper end of a "vertical slot in .the guide tube, and as the bobbin seater descends the neck will travel in said vertical slot. l The rearward movement of the slide 144 brings the roller 145 thereon aboveJ the cam portion 159 of the arm 152, and asy thexcrosshead 59. is drawn downwardly by the rod 58 the roller engages said cam portion and swing the arm rearwardly, or to the left, Fig. 2y In its 'f further descent the roller travels between the/ prises an inverted trough-shaped member stationary guide 153 and the arm 152. y e rearward movement of the rod 156 opera es the bellv crank 15,7 and link 158 to release a bobbin from the magazine to drop through the guides 133 and 134 into the upper end of the-inverter tube. The rod 156 in its rearward movement also withdraws the stopsv or latches 161 and v162 from the guide tube to Apermit the lower bobbin to fall on to a fspindle and the upper bobbin tov descend from the lower portion of the inverter tube, the latter bobbin falling v.onto the bobbin seater 1-19. At the lower end of the guidel 153 the arm 152 is cut away and as the roller 145 passes this point, the spring 156a swings the arm forwardly and projects the catches 161 and 162 into the guide tube. Atthis time the bohbin seater 149 is still above the lower catch 162. The head of the bobbin seater is made smaller than the butt of a bobbin so that the bobhin seater may pass the lower catclr162, but vthe bobbin supported on the upper side of the seater will be engaged4 and held by said catch.Y The bobbin seater now engages the hobbin which has just descended onto the spindle and firmly presses or `seats the bobbin thereon.

At this time the rock shaft is rotated to carry the rod andthe slide 144 forwardly, thus withdrawing the hobbin seater from the tube through an opening therein for that purpose. As the crosshead 59 is carried upwardly the -bobbn seater moves up at the outside of the tube 130, and the roller 115 passes at the forward side (righbhand, Fig. 25) of the guide 153; Y The magazine for emp-ty bobbins is supported upon the spinning frame by means comprising uprights 6, secured to the ends ofthe spinning frame, and braces 8 suitably spaced along the frame; lhe uprights 6 have extensions 7 thereon, said extensions. and thebraces 8 having bearings in which a horizontal shaft 10 is rotatably mounted, said shaft extending longitudinally along the spinning frame. Each side of'theispinning frame is provided with a magazine and its supporting means, and Ythe extensions A7 at each end `of the spinningframe are conf 214 which is mounted for vertical adjustment en the standard 6, has a stub shaft 13 rotatably mounted therein, upon which shaft isfiXed a sprocket'wheel 14. A chain 16 runs overthe `sprocket wheels 11 and 14. The end of the shaft 13 may be squared or pr vided with; a pin for interengagement wish a crank for rotating said shaft. (See 22K/Upon the shaft 13 is also fixed a di y 5 having a notch in its periphery, in w notch a dog 18, pivoted upon the up- 'gt/JG, is arranged to dropas will be later xpp/anal. The bobbin magazine 17 comwhichl is. carried by the lower ends of a seriesl of guide rods 20, said rods being slidable in bearings 8a; upon the braces '8,`

and having collars 19 fixed upon their upper y endsfor determining the lowermost movebraces 8. Cables 22 secured to and arranged to be wound up by the sheaves 12, have their lower ends attached to ears on said fixtures so that when the shaft 13, and therefore the cfm be raised. When the magazine is in its up pei-most position the dogl8 will drop into the notch in the locking disk 15. 1*/ TheA construction vjust described provides le means whereby the magazines may be lowered for use and for the purpose 'of supplying them with empty bobbins, as well as one which mayv be raised entirely above the creel board and out of the way of the operative parts of the spinning frame.

The lower edges of the bobbin magazine are provided with guide-ways upon which the bobbins are arranged to hang by their butts in inverted position. The guide at one side of the magazine consists of a rail 23 having a downwardly inclined edge to support the bobbins. 'The opposite side yof the magazine is provided with a plurality of catches 29 which, when' in their innermost position, form parts of an unbroken guide rail, but which are arranged to be .withdrawn laterally to permit successive bobbins "to escape from the magazine. To one side of the magazine is secured a strip 24 which provides convenient means for connecting to the magazine the springs for moving these bobbin-retaining catches inwardly.

than a sufficient number of empty bobbins to supply the spindles on one side of ,the frame. 'This-is desirable because one of the bobbins may be defective or broken, r it may have its bore partially filled with yarn t c so that it cannot be properlyplaced upon a 40 spindle.- In such a case a bobbin will be taken from the magazine and placed in position b v hand. Owing to the inclined inner edge of the magazine rail 23, a forward and .downward pull upon a vbobbin will release lit from the magazine without actuating the spring-pressed catches mechanically. The magazine maybe filled with bobbins from one end thereof either by hand or from any suitable carrier, and when the bobbin first inserted comes opposite a gage mark provided on the magazine, this will indicate that the magazine has been sufficiently filled.

5 is'arranged to be driven. by an electric mo- .fshaft 10, isrotated, the bbbbin magazine will The magazine is adapted to carry more The catches 29 are arranged -to be drawn out moves along'the spinning frame in the b0bing into position to engage the catches 29,

tor,-the bobbin magazine is made of insulating material and at the lower edges thereof are provided a pair of contact strips 28 29 work, said switch being connected -with the motor 31.- The upper ends of the wires 26 26 are electrically connectedwith a pair of contacts or brushes 215 mounted in an insulating cross head 27 (Figs. 1, 2, 3 and 6) carried upon the upper p ortionof a shaft 30. Upon the upper end of said shaft is atheir lower ends connect-` contacting lstrips 28 and-29. The shaft 30 is rotatably mounted in a sleeve 136 held be- 4 tween a pair of ears 135 upon the upper end of the upright 132 (Figs. 16 and 17).

Said sleeve is provided with a quarter turn slot therein (shown in Fig. 2.), and in this slot is arranged to travel a cross pin fixed in the shaft 30. The shaft 30 ,is arranged to be given a longitudinal movement'by means te bepresently described, and in this movel A ment it will be turned a quarter turn by engagement of its cross pin with the slotin the sleeve 136. This will operate to swing the bobbin pusher 30a and the cross head 27 longitudinally of the magazine and carry the brushes 215 out of engagement with the contact strips 28 and 29. The shaft 30 is arranged to be vertically moved by means of a lever 110 pivoted-.between its ends upon the bracket 127, one end of said lever being connected to said shaft and the opposite end of said lever being connected to the upper end of a link 109, the lower end of said link being connected with an arm or extension 108 upon one of the eccentric supports 100 for the upper supporting rollers 98 of the framework. Thus, when the lframework is to be moved out of association with the spinning frame, the link 109 will be 'drawn downwardly to disconnect the brushes from the contactstrips 28, 29 and permit the bobbin pus/her 30a to be withdrawn fromk the magaf zine. s

Figs. 29 to 32 of the drawings show a different form of magazine and a slightly modified construction ofthe upper part of' the doifer. To vapply this form of magazine, the spinning frame has mounted thereon at each side supports 6a that carry angu# lar armsA 7", said arms supporting a rail 10a which-extends longitudinally of the spluning frame. The'magazine 17 comprises a series of inclined bobbin compartments, 

